ScienceDaily: Engineering and Construction News |
- Molecular engineers record an electron's quantum behavior
- A self-organizing thousand-robot swarm
- Chemists uncover powerful new click chemistry reactivity
- New material could enhance fast, accurate DNA sequencing
- New test reveals purity of graphene: Scientists use terahertz waves to spot contaminants
- Engineers turns metal into glass: New process solves an age-old conundrum
- A new look at what's in 'fracking' fluids raises red flags: Some compounds toxic to mammals
- 'Trojan horse' treatment could beat brain tumors
| Molecular engineers record an electron's quantum behavior Posted: 14 Aug 2014 04:21 PM PDT Scientists have developed a technique to record the quantum mechanical behavior of an individual electron contained within a nanoscale defect in diamond. Their technique uses ultrafast pulses of laser light both to control the defect's entire quantum state and observe how that single electron state changes over time.  |
| A self-organizing thousand-robot swarm Posted: 14 Aug 2014 04:18 PM PDT The first thousand-robot flash mob has assembled at Harvard University. Just as trillions of individual cells can assemble into an intelligent organism, or a thousand starlings can form a great flowing murmuration across the sky, the Kilobots demonstrate how complexity can arise from very simple behaviors performed en masse. To computer scientists, they also represent a significant milestone in the development of collective artificial intelligence.  |
| Chemists uncover powerful new click chemistry reactivity Posted: 14 Aug 2014 04:16 PM PDT Chemists have used click chemistry to uncover unprecedented, powerful reactivity for making new drugs, diagnostics, plastics, smart materials and many other products.  |
| New material could enhance fast, accurate DNA sequencing Posted: 13 Aug 2014 02:44 PM PDT Gene-based personalized medicine has many possibilities for diagnosis and targeted therapy, but one big bottleneck: the expensive and time-consuming DNA-sequencing process. Now, researchers have found that nanopores in the material molybdenum disulfide could sequence DNA more accurately, quickly and inexpensively than anything yet available.  |
| New test reveals purity of graphene: Scientists use terahertz waves to spot contaminants Posted: 13 Aug 2014 02:44 PM PDT A new test using terahertz waves can check graphene for atmospheric and other contaminants that affect its electronic performance.  |
| Engineers turns metal into glass: New process solves an age-old conundrum Posted: 13 Aug 2014 07:38 AM PDT Materials scientists have long sought to form glass from pure, monoatomic metals. Now a team of researchers has done it. Metallic glasses are unique in that their structure is not crystalline (as it is in most metals), but rather is disordered, with the atoms randomly arranged. They are sought for various commercial applications because they are very strong and are easily processed.  |
| A new look at what's in 'fracking' fluids raises red flags: Some compounds toxic to mammals Posted: 13 Aug 2014 07:31 AM PDT As the oil and gas drilling technique called hydraulic fracturing proliferates, a new study on the contents of the fluids used raises concerns over several ingredients. The scientists say out of nearly 200 commonly used compounds in "fracking," there's very little known about the potential health risks of about one-third, and eight are toxic to mammals.  |
| 'Trojan horse' treatment could beat brain tumors Posted: 12 Aug 2014 08:57 PM PDT A 'Trojan horse' treatment for an aggressive form of brain cancer, which involves using tiny nanoparticles of gold to kill tumor cells, has been successfully tested by scientists. The ground-breaking technique could eventually be used to treat glioblastoma multiforme, which is the most common and aggressive brain tumor in adults, and notoriously difficult to treat.  |
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